Name: B38/B46/B48/B58 JB Plus Quick Install Tuner
SKU: 159618

Plug in up to 40 extra wheel horsepower in seconds!

Finally our popular and well-proven JB Plus quick install tuner is available for B46, B48, and B58 applications! Boost is user adjustable up to 4.5psi over stock providing gains up to 30 wheel horsepower and 40 wheel torque on the B48 motor and up to 40 wheel horsepower and 50 wheel torque on the B58 motor. Timing and fueling remain managed seamlessly by the DME, preserving all factory safety systems.

While the JB4 is the ultimate tuning tool, the JB Plus (JB ) is a quick and simple way to add a few HP with minimal cost and minimal installation effort. Something that anyone can buy, install in under a minute, and really feel from the driver's seat.

Fuel economy during normal driving is unchanged. Automatically detects the engine type upon installation, allowing the same unit to be used for any B48 B58 F series application!

For those who want to start with the JB Plus and upgrade to the higher power, more advanced JB4 tune, we offer a 100% trade-up credit. To qualify, simply purchase the JB4 system from our website directly, and then after receipt, mail back the JB Plus along with its purchase receipt from BMS or any authorized reseller, and we'll issue a $239.00 refund against your JB4 purchase. The offer is valid for up to one year after purchasing the JB Plus. Made in the USA. 5-Year Warranty.

B58_JB_PLUS is CARB Approved Under Executive Order (EO) No.D-744-4 for all 2016-2018 BMW 230i, 330i, 430i, 530i, 340i, 440i, 740i, M240i, and X1 applications.

Vehicle Fitment

Note: If your BMW has a B38/B46/B48/B58 engine and you don't see your exact model on the list below, please email us.

BMW 1 Series
• 2021 F40 B48 128ti
• 2019 F40 B48 M135i
• 2019 F40 B38 M118i
• 2015 F20/F21 B58 M140i
• 2016 F20/F21 B48 120i, 125i
• 2015 F20/F21 B38 116i
• 2015 F20/F21 B38 118i

BMW 2 Series
• 2022 G42 B58 M240i xDrive
• 2022 G42 B48 220i 230i
• 2016-2021 F22 F23 B58 M240i/iX
• 2017-2021 F22 F23 B48 230i/iX
• 2017-2021 F22 F23 B48 225i/iX
• 2017-2021 F22 F23 B46 220i/iX
• 2015-2021 F22 F23 B38 218i
• 2015-2021 F45 F46 B38 216i Active tourer and GT
• 2014 F45 F46 B38 218i, 220i Active tourer and GT
• 2019 F44 B48 M235i/iX Gran Coupé

BMW 3 Series
• 2020 G20 B58 M340i/M340iX
• 2020 G20 B48 330i/330iX
• 2016 F30 B58 340i/340iX
• 2016 F30 B48 330i/330iX/330e
• 2016 F30 B48 325i/325iX
• 2016 F30 B46 320i/320iX
• 2016 F30 B46 318i/318iX

BMW 4 Series
• 2021 G22 G23 G26 B58 M440i/M440iX/Gran Coupe
• 2021 G22 G23 G26 B48 420i/430i/430iX/Gran Coupe
• 2016-2020 F32 F33 F36 B58 440i/440iX/Gran Coupe
• 2016-2020 F32 F33 F36 B48 430i/430iX/Gran Coupe
• 2016-2020 F32 F33 F36 B48 425i/425iX
• 2016-2020 F32 F33 F36 B46 420i/420iX
• 2016-2020 F32 F33 F36 B38 418i

BMW 5 Series
• 2017 G30 B58 540i/540iX
• 2017 G30 B46/B48 530i/530iX/530e
• 2021 G30 545e

BMW 6 Series
• 2018 G32 G33 B48/B58 630i/640i/640iX

BMW 7 Series
• 2016 G11/G12 B58 740i/740iX
• 2016 G11/G12 730i/730iX

BMW 8 Series
• 2020 G15/G14/G16 B58 840i/840iX/Gran Coupe

BMW X Series
• 2016 B46/B48 X1
• 2018 B46/B48 X2
• 2018 G01 B48/B58 X3 2.0i/3.0i/M40i
• 2019 G02 B48/B58 X4 2.0i/3.0i/M40i
• 2019 G05 B58 X5 40i
• 2021 G05 X5 45e
• 2019 G07 B58 X7 40i

BMW Z4
• 2019 BMW G29 B58 Z4 M40i
• 2019 BMW G29 B46/B48 Z4 30i and Z4 20i

Toyota
• 2020 GR Toyota Supra 3.0L 6 cyl. (B58)

MINI B38/B46/B48
• 2014 F57 Cooper S
• 2015 F57 Cooper JCW
• 2014 F55/F56 Cooper S
• 2015 F55/F56 JCW
• 2018 F55/F56 MINI One

• 2017 F60 Countryman S
• 2017 F60 Countryman S ALL4
• 2018 F60 Countryman JCW ALL4

• 2016 F54 Clubman S
• 2017 F54 Clubman S ALL4
• 2017 F54 Clubman JCW ALL4

If you don't see your B38/B46/B48/B58 powered vehicle or year listed here please email us.